Sunspot drawing of 1974-10-18

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https://doi.org/10.7891/e-manuscripta-97921



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1974-10-18
06:30
Hs 1304.5:5512
https://doi.org/10.7891/e-manuscripta-97921
Observer : Araldo Pittini
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
165 6 D 8.1 274.5
1 6